Rahul Bhatt trains Kunal Kohli in the gym

Filmmaker Kunal Kohli was spotted excising at the gym to tone up his muscles.

The "Hum Tum" director took to micro-blogging website Twitter to share the photograph where actor Rahul Bhatt was seen smiling and sporting a black t-shirt while Kohli was wearing a black vest and shorts.

"Rahul Bhatt smiling while killing me in the gym", Kohli tweeted on Thursday.